298 PROCEEDINGS OF THE NATIONAL MUSEUM vol. no 



plagas y enfermedades de los cultivos de la Republica, Mexicana, pp. 84-85, 

 1930.— Anon., Fitofilo, vol. 1, no. 2, p. 54, 1942; Fitofilo, vol. 2, no. 3, p. Ill, 

 1943. — McKelvey, et al., Mexico, Seer. Agri. Ganad. Foil. Tec, vol. 8, p. 11, 

 figs. 1-5, 1951.— Smith, Coleopt. Bull., vol. 5; pp. 61-62, 1951. 



Description: Length, 1.75 to 2.21 mm.; width, 0.87 to 1.00 mm. 



Moderately robust. Black, elytra and prothorax with strong golden 

 bronze luster; pubescence conspicuous, fine, yellow on dorsal surface, 

 becoming white laterally and ventrally, sparse, coarser and denser 

 laterally and ventrally. Male beak as long as head and prothorax 

 combined, slightly, evenly curved; slightly expanded ventrally at 

 antennal insertion, attenuate from there to apical tlm-d where it is 

 nearly cylinch-ical; moderately punctate and pubescent in basal two- 

 thirds, apical third smooth, shining. Female beak moderately 

 strongly, evenly curved, about two-fifths longer than head and pro- 

 thorax, nearly cylindrical throughout, with vcntromedian angulation 

 behind antennal insertion; moderately punctured and pubescent in 

 basal fourth, smooth and dull to apex. Antennae of male inserted at 

 distance from eye slightly less than width of frons at basal fifth of 

 beak, of female at distance from eye equal to width of frons at basal 

 fourth; first segment of male longer than next two, of female a little 

 longer than next three combined; second segment a little longer than 

 third; club 0.21 by 0.09 mm. Eyes moderately prominent; frons 

 moderately wide, median sulcus lacking, with about six faint longi- 

 tudinal rows of fine, nearly'- contiguous punctures and appearing faintly 

 striate. Prothorax at base one-fourth wider than long, middle 

 slightly narrower than base, apex two-thirds to three-fourths as wide 

 as base; sides expanded laterally at base, nearly parallel to middle 

 then rounded to constricted apex; in profile dorsal sm-face slightly, 

 evenly convex; punctation moderate, 0.03 mm. in diameter, shallow, 

 interspaces about equal to diameter of punctures, flat, alutaceous; 

 basal fovea short, shallow, rounded. Elytra at humeri two-fifths 

 wider than prothorax at base, 2.75 times as long as prothorax, length 

 to width as 8.5 : 11; intervals about twice as wide as striae, flnt or 

 slightly convex, G.nelj alutaceous, with one or two irregular rows of 

 fine punctures; striae deep, fine. Scutellum elongate, linear, about 

 twice as long as wide, 0.15 by 0.07 nmi., with median furrow. Front 

 femora about 3.7 times as long as wide. Claws with moderate basal 

 tooth. 



Special male characters: Tibiae 2 and 3 armed with moderate, 

 simple mucrones; tibia 1 on inner side with a flat, smooth, longi- 

 tudinally striate area extending from near base to apical one-fourth, 

 from anterior view front tibiae appear to be compressed especially 

 on inner side and are deflexed distad of apical two-fifths. 



